$294+ Cheap flights from Seattle (SEA) to Helsinki (HEL)
This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 10/19. Fares are subject to change and may not be available on all flights or dates of travel.
SEA — HEL
Jun 3 — Jun 101
Round-trip
1 adult, Economy
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Find cheap flights from Seattle to Helsinki with Cheapflights
1. Tell us where you want to go
Enter your travel information like dates, passengers, trip type (one-way or round trip), and preferred cabin class then click “Find deals”2. Select your favorite providers
We find the providers serving your travel needs. Choose up to four travel providers to compare side-by-side for flights, hotels, or car rentals.3. Compare prices and book
Review each provider’s pricing and select the best option for you! Book through your favorite provider’s website for a seamless experience.Cheapflights Tip: The best prices from Seattle/Tacoma Intl to Helsinki-Vantaa are usually found in January or October, booked 73 days in advance, depart on a Wednesday or Friday and return on a Tuesday
Cheap flight deals from Seattle to Helsinki
Cheapest
Best
Last-minute
One-way
Cheapest flights from Seattle to HelsinkiExplore the most affordable flight options available from Seattle to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
Explore the most affordable flight options available from Seattle to Helsinki. Find the lowest fares from popular airlines and budget airlines, with prices last updated on May 4, 2026.
This Mytrip deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/198:00 am
SEA
- HEL
2 stops26h 00m
Multiple Airlines
Sun 8/238:15 am
HEL
- SEA
2 stops22h 52m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$569
This Trip.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 8/197:00 pm
SEA
- HEL
2 stops18h 05m
Multiple Airlines
Mon 8/317:05 am
HEL
- SEA
2 stops23h 35m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$636
This Mytrip deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 8/208:00 am
SEA
- HEL
3 stops30h 40m
Multiple Airlines
Mon 8/249:20 pm
HEL
- SEA
3 stops33h 47m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$689
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:00 am
SEA
- HEL
3 stops30h 05m
Multiple Airlines
Wed 6/37:05 am
HEL
- SEA
2 stops19h 54m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$691
This Mytrip deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:10 pm
SEA
- HEL
2 stops23h 40m
Multiple Airlines
Tue 5/129:15 pm
HEL
- SEA
3 stops33h 53m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$760
This Mytrip deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 6/47:00 pm
SEA
- HEL
3 stops27h 20m
Multiple Airlines
Wed 6/175:30 am
HEL
- SEA
3 stops25h 10m
Multiple Airlines
Deal found 4/30![Multiple Airlines logo]()
$784
This oojo deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:10 pm
SEA
- HEL
1 stop37h 30m
Turkish Airlines
Wed 5/137:35 pm
HEL
- SEA
1 stop31h 40m
Turkish Airlines
Deal found 5/1![Turkish Airlines logo]()
$794
This Mytrip deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/13:40 pm
SEA
- HEL
2 stops15h 00m
Multiple Airlines
Wed 6/107:05 am
HEL
- SEA
2 stops23h 35m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$800
Best flights from Seattle to HelsinkiDiscover carefully curated flight deals from Seattle to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
Discover carefully curated flight deals from Seattle to Helsinki that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated May 4, 2026.
This Icelandair deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 10/97:00 pm
SEA
- HEL
1 stop18h 20m
Icelandair
Tue 10/1312:30 pm
HEL
- SEA
2 stops15h 25m
Icelandair
Deal found 4/29![Icelandair logo]()
$988
This KLM deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure KLM is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/276:40 pm
SEA
- HEL
1 stop36h 00m
Multiple Airlines
Tue 6/21:55 pm
HEL
- SEA
1 stop31h 42m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$1,083
This Scandinavian Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sun 7/123:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Fri 7/244:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$1,098
This United Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/268:56 am
SEA
- HEL
2 stops23h 59m
United Airlines
Tue 6/22:05 pm
HEL
- SEA
3 stops65h 05m
United Airlines
Deal found 5/1![United Airlines logo]()
$1,133
This Scandinavian Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 7/73:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Sat 7/254:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$1,098
This Icelandair deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Icelandair is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/273:40 pm
SEA
- HEL
1 stop12h 20m
Icelandair
Mon 6/13:00 pm
HEL
- SEA
1 stop15h 40m
Icelandair
Deal found 5/1![Icelandair logo]()
$1,136
This United Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure United Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/711:11 pm
SEA
- HEL
2 stops33h 44m
United Airlines
Fri 8/216:55 am
HEL
- SEA
3 stops26h 29m
United Airlines
Deal found 5/3![United Airlines logo]()
$1,168
This Scandinavian Airlines deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 6/203:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Sat 7/254:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 5/1![Scandinavian Airlines logo]()
$1,136
This Scandinavian Airlines deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 7/103:55 pm
SEA
- HEL
1 stop23h 35m
Scandinavian Airlines
Sat 7/254:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 5/3![Scandinavian Airlines logo]()
$1,148
This Scandinavian Airlines deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Scandinavian Airlines is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 6/163:55 pm
SEA
- HEL
1 stop13h 25m
Scandinavian Airlines
Fri 7/34:00 pm
HEL
- SEA
1 stop31h 45m
Scandinavian Airlines
Deal found 4/29![Scandinavian Airlines logo]()
$1,218
Last-minute flights from Seattle to HelsinkiDiscover last-minute flight deals from Seattle to Helsinki. Data last updated May 4, 2026 and is based on user searches.
Discover last-minute flight deals from Seattle to Helsinki. Data last updated May 4, 2026 and is based on user searches.
This oojo deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/47:10 pm
SEA
- HEL
1 stop37h 30m
Turkish Airlines
Wed 5/137:35 pm
HEL
- SEA
1 stop31h 40m
Turkish Airlines
Deal found 5/1![Turkish Airlines logo]()
$794
This Mytrip deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/62:10 pm
SEA
- HEL
2 stops23h 40m
Multiple Airlines
Tue 5/129:15 pm
HEL
- SEA
3 stops33h 53m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$760
This oojo deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/67:10 pm
SEA
- HEL
1 stop37h 30m
Turkish Airlines
Tue 5/1212:05 pm
HEL
- SEA
1 stop39h 10m
Turkish Airlines
Deal found 5/3![Turkish Airlines logo]()
$949
This oojo deal was found by Cheapflights users on 4/30. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure oojo is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/77:10 pm
SEA
- HEL
1 stop30h 00m
Turkish Airlines
Thu 5/147:35 pm
HEL
- SEA
1 stop31h 40m
Turkish Airlines
Deal found 4/30![Turkish Airlines logo]()
$861
This Justfly.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Justfly.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/263:55 pm
SEA
- HEL
1 stop23h 35m
Scandinavian Airlines
Tue 6/211:15 am
HEL
- SEA
1 stop12h 30m
Scandinavian Airlines
Deal found 5/1![Scandinavian Airlines logo]()
$954
This Mytrip deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 5/278:00 am
SEA
- HEL
3 stops30h 05m
Multiple Airlines
Wed 6/37:05 am
HEL
- SEA
2 stops19h 54m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$691
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 5/287:00 pm
SEA
- HEL
1 stop18h 40m
Multiple Airlines
Fri 6/57:10 am
HEL
- SEA
1 stop14h 35m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$941
One-way flights from Seattle to HelsinkiSearch for one-way flight options from Seattle to Helsinki. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
Search for one-way flight options from Seattle to Helsinki. Find affordable one-way fares based on user searches. Data last updated May 4, 2026.
This Trip.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 10/197:00 pm
SEA
- HEL
2 stops15h 35m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$294
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 10/203:40 pm
SEA
- HEL
2 stops30h 40m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$307
This Trip.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/297:00 pm
SEA
- HEL
2 stops27h 20m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$314
This Kiwi.com deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Thu 10/223:40 pm
SEA
- HEL
2 stops31h 55m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$325
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Sat 5/307:00 pm
SEA
- HEL
2 stops28h 30m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$340
This Trip.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Tue 5/267:00 pm
SEA
- HEL
3 stops27h 20m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$343
This Kiwi.com deal was found by Cheapflights users on 5/2. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 5/2911:25 pm
SEA
- HEL
2 stops48h 05m
Multiple Airlines
Deal found 5/2![Multiple Airlines logo]()
$344
This Kiwi.com deal was found by Cheapflights users on 4/29. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 6/83:40 pm
SEA
- HEL
3 stops41h 10m
Multiple Airlines
Deal found 4/29![Multiple Airlines logo]()
$351
This Mytrip deal was found by Cheapflights users on 5/4. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Mytrip is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 10/213:40 pm
SEA
- HEL
3 stops30h 40m
Multiple Airlines
Deal found 5/4![Multiple Airlines logo]()
$353
This Trip.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Trip.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Wed 6/37:00 pm
SEA
- HEL
3 stops19h 40m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$354
This Kiwi.com deal was found by Cheapflights users on 5/1. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Fri 8/2111:25 pm
SEA
- HEL
2 stops37h 30m
Multiple Airlines
Deal found 5/1![Multiple Airlines logo]()
$362
This Kiwi.com deal was found by Cheapflights users on 5/3. Clicking the “Pick Dates” button in this card will allow you to select your dates and further customize your flight criteria. From there, click “Find deals”, make sure Kiwi.com is selected, and click “Compare selected” under the list of providers to see comparable flight deals.
Mon 5/257:00 pm
SEA
- HEL
3 stops19h 40m
Multiple Airlines
Deal found 5/3![Multiple Airlines logo]()
$377
Find flight deals from Seattle to Helsinki
Discover tips and strategies to find the most affordable flight options for your journey from Seattle (SEA) to Helsinki (HEL). Learn about various techniques such as flexible date searches, comparing prices across and setting up price alerts. Use these methods to find the cheapest flights available for your travel needs. Data last updated May 4, 2026.
Most accurate provider | FlightHub 3 stars |
|---|---|
Most trusted provider | FlightHub 3 stars |
Round-trip from | $569 (Mytrip) |
One-way from | $294 (Trip.com) |
Popular in | June |
Cheapest in | January |
Average price | $930 |
Good round-trip deal | $1,139 or less |
Good one-way deal | $471 or less |
Cheapflights Fare Finder
Customize your flight search to find flights from Seattle to Helsinki that fit within your specific budget. Explore options based on user searches and filter the results based on your desired price range. Find flights that match your budget for a cost-effective journey. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
Use the filters below to find and compare flights from Seattle to Helsinki that are best for you.
Fly from
Fly to
Route
Depart
Return
Cheapest round-trip
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Fri 10/9
7:00 pm-11:20 pm
1 stop18h 20m
Helsinki-Vantaa
Tue 10/13
12:30 pm-5:55 pm
2 stops15h 25m
$988
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Wed 5/27
6:40 pm-4:40 pm
1 stop36h 00m
Helsinki-Vantaa
Tue 6/2
1:55 pm-11:37 am
1 stop31h 42m
$1,083
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Sun 7/12
3:55 pm-3:20 pm
1 stop13h 25m
Helsinki-Vantaa
Fri 7/24
4:00 pm-1:45 pm
1 stop31h 45m
$1,098
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 7/7
3:55 pm-3:20 pm
1 stop13h 25m
Helsinki-Vantaa
Sat 7/25
4:00 pm-1:45 pm
1 stop31h 45m
$1,098
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 5/26
8:56 am-6:55 pm
2 stops23h 59m
Helsinki-Vantaa
Tue 6/2
2:05 pm-9:10 pm
3 stops65h 05m
$1,133
Quickest round-trip
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Wed 5/27
3:40 pm-2:00 pm
1 stop12h 20m
Helsinki-Vantaa
Mon 6/1
3:00 pm-8:40 pm
1 stop15h 40m
$1,136
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Sat 6/20
3:55 pm-3:20 pm
1 stop13h 25m
Helsinki-Vantaa
Sat 7/25
4:00 pm-1:45 pm
1 stop31h 45m
$1,136
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Fri 7/10
3:55 pm-1:30 am
1 stop23h 35m
Helsinki-Vantaa
Sat 7/25
4:00 pm-1:45 pm
1 stop31h 45m
$1,148
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Fri 8/7
11:11 pm-6:55 pm
2 stops33h 44m
Helsinki-Vantaa
Fri 8/21
6:55 am-11:24 pm
3 stops26h 29m
$1,168
SeattleHelsinki
SEA - HEL
SEAHEL
Seattle/Tacoma Intl
Tue 6/16
3:55 pm-3:20 pm
1 stop13h 25m
Helsinki-Vantaa
Fri 7/3
4:00 pm-1:45 pm
1 stop31h 45m
$1,218
Showing 1-10 of 20 resultsSorted by cheapest first
Compare providers for flights from Seattle to Helsinki
Provider information is updated monthly. Please note that these providers often have deals for this flight, but the availability may vary on a day-by-day basis on Cheapflights.
Use the table below to compare price accuracy, trust ratings, and cancellation policies for each provider offering flight deals from Seattle to Helsinki in May.
| Provider | Price Accuracy | Trust Score* |
|---|---|---|
| Price Accuracy1 star | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy3 stars | Trust Score*3 stars | |
| Price Accuracy2 stars | Trust Score*1 star | |
| Price Accuracy- | Trust Score*1 star |
- Most accurate provider: When it comes to deals on Seattle-Helsinki flights, users find the pricing of FlightHub to be most consistent on Cheapflights vs. FlightHub Users can find the same prices on Seattle-Helsinki flight deals on Cheapflights vs. FlightHub >95% of the time. Price accuracy is based on data collected from Seattle-Helsinki flight searches over the past month and is updated monthly.
- Most trusted provider: When it comes to deals on Seattle-Helsinki flights, Cheapflights users trust FlightHub the most. FlightHub has received a user feedback score of 3 out of 3 stars (3 being the best), meaning they have been trusted the most by Cheapflights users looking for Seattle-Helsinki flight deals. Provider user feedback score is based on Cheapflights searches over the past month and is updated monthly.
Best time to book a flight from Seattle to Helsinki
Have a flexible travel schedule? Discover the best time to fly to Helsinki from Seattle with our price prediction graph.
SEA-HEL
Estimated round-trip price
Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.
Cheapflights Insights
Everything you need to know about your flight from Seattle to Helsinki
How far ahead should I book a flight from Seattle to Helsinki?
The best time to book flights from Seattle to Helsinki is 70 days before your desired departure date. The cost of your flight will likely increase significantly if you book two weeks in advance of your flight.
What is the cheapest month to book a flight from Seattle to Helsinki?
Currently, January is the cheapest month in which you can book a flight from Seattle to Helsinki (average of $539). Flying from Seattle to Helsinki in June is currently the most expensive (average of $1,183). There are several factors that can impact the price of a flight, so comparing airlines, departure airports and flight times can provide users with more options.
How much does it cost to fly round-trip from Seattle to Helsinki?
Reviews of airlines servicing Helsinki
Get insights into the airlines that provide service to Helsinki. Read reviews, discover amenities, and learn about the overall travel experience offered by airlines. Use this information to make informed decisions when choosing an airline for your flight to Helsinki. Reviews last updated May 4, 2026.
Get a feel of what it's like to fly with Finnair,Scandinavian Airlines, andAmerican Airlines from Seattle to Helsinki by reading reviews from past customers. Users have also rated airlines in terms of entertainment options, comfort, food, crew/service, and boarding process.
Entertainment
6.9
Crew
8.2
Comfort
7.4
Overall
7.6
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Entertainment
6.9
Crew
8.2
Comfort
7.4
Overall
7.6
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Entertainment
6.9
Crew
8.2
Comfort
7.4
Overall
7.6
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Entertainment
6.9
Crew
8.2
Comfort
7.4
Overall
7.6
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Entertainment
6.9
Crew
8.2
Comfort
7.4
Overall
7.6
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Entertainment
6.9
Crew
8.2
Comfort
7.4
Overall
7.6
Food
6.7
Boarding
7.7
Reviews
1 / 20
8.0
ExcellentAnonymous,Apr 2026
HEL - KAO
Related info for your journey
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Top 6 airlines flying from Seattle to Helsinki
Discover the top 6 airlines that operate flights from Seattle to Helsinki. Compare their services, reliability, and customer satisfaction ratings to choose the airline that best suits your travel preferences and needs. Over the last 7 days, Cheapflights users made 2,558,603 searches. Data last updated May 4, 2026.
| Airline | Cheapest | Average | Flexibility | On-time |
|---|---|---|---|---|
| Cheapest$323 | Average$548 | FlexibilityNo cancel fee | On-time77% | |
| Cheapest$424 | Average$826 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$496 | Average$1,028 | FlexibilityNo cancel fee | On-time71% | |
| Cheapest$536 | Average$1,056 | FlexibilityNo cancel fee | On-time75% | |
| Cheapest$700 | Average$1,114 | FlexibilityNo cancel fee | On-time76% | |
| Cheapest$725 | Average$1,148 | FlexibilityNo cancel fee | On-time70% |